/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.psi.util;

import com.intellij.openapi.components.ServiceManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public interface PsiEditorUtil {
  @Nullable
  Editor findEditorByPsiElement(@NotNull PsiElement element);

  @Nullable
  static Editor findEditor(@NotNull PsiElement element) {
    return Service.getInstance().findEditorByPsiElement(element);
  }

  class Service {
    public static PsiEditorUtil getInstance() {
      return ServiceManager.getService(PsiEditorUtil.class);
    }
  }

  @NotNull
  static PsiFile getPsiFile(Editor editor) {
    Project project = editor.getProject();
    assert project != null;
    PsiFile psiFile = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
    assert psiFile != null;
    return psiFile;
  }
}
